1. In addition to the references listed below, the following general articles may be consulted
2. Sterols and bile acids. Chapter;Brooks,1970
3. From proto-biochemistry to biochemistry;Florkin,1972
4. Early studies on biosynthesis;Florkin,1972
5. Goodwin, T. W. (1973). Prochirality in biochemistry. Essays in Biochemistry, 9, 103-160 Terpenoids and Steroids. In: Specialist Periodical Reports. Published annually by The Chemical Society, Burlington House, London.